Plug-in type flexible coil and rotating shaft monitoring device with same

The plug-in type flexible coil comprises a circuit board and a plug connector, the circuit board comprises a substrate and a plurality of flat cables arranged on the substrate at intervals, the plug connector is used for enabling the circuit board to be connected end to end, a head end and a tail end are formed on each flat cable, and the head end and the tail end are connected with each other through the plug connector. When the circuit boards are connected end to end through the connecting plugs, the tail end of the Nth flat cable is connected with the head end of the (N + 1) th flat cable, and N is a positive integer smaller than the total number of the flat cables. The plug-in type flexible coil can be easily arranged on a rotating shaft, and the quality factor of an inductor can be improved. 插接式柔性线圈及具有其的旋转轴监测装置，该插接式柔性线圈，包括电路板及插接头，所述电路板包括基板及间隔布设于所述基板上的多条排线，所述插接头用于使所述电路板首尾相连，每一所述排线上均形成有首端及尾端，当所述电路板通过所述插接头首尾相连时，第N条所述排线的尾端与第N+1条所述排线的首端相连，其中，N为小于所述排线总条数的正整数。该插接式柔性线圈能够较为容易地设置于旋转轴上，并能够提高电感品质因数。